The invention discloses a contactless
transformer, which comprises a primary-side
magnetic core, a primary-side winding, a secondary-side
magnetic core and a secondary-side winding, wherein the secondary-side winding of the contactless
transformer comprises a main secondary-side winding and an auxiliary winding; the auxiliary winding is of a two-section type or a multi-section type; each section of the auxiliary winding is overlapped, partially overlapped or not overlapped with the main secondary-side winding. According to the contactless
transformer, each section of the auxiliary winding is distributed in different areas of the secondary-side
magnetic core of the contactless transformer to form one, two or more auxiliary winding units, and the auxiliary winding units with optimal
magnetic flux coupling effects are automatically switched under the conditions of
dislocation in different directions and different degrees, so that the condition of no
power transmission at a sending
blind spot is further avoided by the combined output of each auxiliary winding unit and the main secondary-side winding, the
power transmission of the main secondary-side winding is effectively compensated, the
dislocation sensitivity of output characteristics of the contactless transformer is reduced, and the
power transmission capability of the contactless transformer is improved.